2012 Lexus LS 460 Owners Manual - Page 253

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2-4. Using other driving systems

2

■

Temporary cancellation of the LKA system functions

If any of the following occurs, the LKA system functions will automatically be tem-

porarily cancelled. The functions will resume after the necessary operating condi-

tions have returned.

●

The turn signal lever is operated.

●

The steering wheel is turned as far as necessary to cause the vehicle to change

lanes.

●

The vehicle speed deviates from the operating range of the LKA system func-

tions.

●

The lane lines cannot be recognized while driving.

●

The wiper operates continuously.

●

The brake pedal is depressed.

The lane keeping assist function will not resume even after the brake pedal is

released because depressing the brake pedal also cancels the dynamic radar

cruise control. However, the lane departure warning function resumes operation.

■

When the lane departure warning function is activated

The lane departure warning function will be temporarily canceled and will not

resume until a few seconds elapse after it is activated.

■

Hands-free driving warning

If the steering wheel is not operated for about 15 seconds on a straight road or

about 5 seconds on a curve, the signal will beep twice, indications on the multi-

information display will flash, and the lane keeping assist function will be temporarily

cancelled. If you drive the vehicle with your hands lightly touching the steering

wheel, it may also be detected as hands-free driving.

■

When the vehicle has been parked under the scorching sun

The LKA system functions may not operate for a while when driving first com-

mences. The functions will become operational once the cabin temperature

decreases and the camera's surrounding area returns to an appropriate tempera-

ture. Therefore, turn the LKA system off, and after a while turn it back on.

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P. 258)